481. Rio Llorona (8.58N, 83.7W) Puntarenas, Stream 482. Rio Lobo (9.82N, 83.95W) Cartago, Stream 483. Rio Lodo Podrido (10.93N, 84.75W) Alajuela, Stream 484. Rio Lores (9.88N, 83.78W) Guanacaste, Stream 485. Rio Los Negritos (10N, 84.78W) Puntarenas, Stream 486. Rio Los Planes (10.45N, 85.6W) Guanacaste, Stream 487. Rio Lovatripas (9.9N, 83.97W) Guanacaste, Stream 488. Rio Luri (9.25N, 83.3W) Puntarenas, Stream 489. Rio Macarron (10.02N, 84.13W) Heredia, Stream 490. Rio Macho (9.78N, 83.83W) Cartago, Stream 491. Rio Macho (10.02N, 84W) San Jose, Stream 492. Rio Macho (9.78N, 83.85W) Cartago, Populated Place 493. Rio Machuca (9.88N, 84.65W) San Jose, Stream 494. Rio Madre (10N, 83.15W) Limon, Populated Place 495. Rio Madre de Dios (10.23N, 83.25W) Limon, Stream 496. Rio Magdalena (10.47N, 85.13W) Guanacaste, Stream 497. Rio Mairena (10.95N, 85.73W) Guanacaste, Stream 498. Rio Mancarron (10.02N, 84.13W) Heredia, Stream 499. Rio Mancarroncito (10.03N, 84.12W) Heredia, Stream 500. Rio Margarita (10.63N, 84.78W) Alajuela, Stream 501. Rio Maria Aguilar (9.93N, 84.12W) San Jose, Stream 502. Rio Martirio (10.6N, 85.1W) Guanacaste, Stream 503. Rio Mata de Perro (10.5N, 85.53W) Guanacaste, Stream 504. Rio Matapalo (9.3N, 83.93W) Puntarenas, Stream 505. Rio Mataralo (8.89N, 83.62W) Puntarenas, Stream 506. Rio Matina (10.1N, 85.35W) Guanacaste, Stream 507. Rio Matina (10.12N, 83.18W) Limon, Stream 508. Rio Matina (10.05N, 85.2W) Guanacaste, Stream 509. Rio Mimboyores (10.3N, 85.7W) Guanacaste, Stream 510. Rio Mocho (9.78N, 83.83W) Cartago, Stream 511. Rio Moravia (10.07N, 83.28W) Limon, Stream 512. Rio Morote (10.05N, 85.2W) Guanacaste, Stream 513. Rio Mosca (9.08N, 83.2W) Puntarenas, Stream 514. Rio Muerte (10.7N, 84.82W) Alajuela, Stream 515. Rio Murcielago (10.92N, 85.75W) Guanacaste, Stream 516. Rio Nacanjo (9.37N, 84.12W) , Stream 517. Rio Nacaome (10.13N, 85.25W) Guanacaste, Stream 518. Rio Nandayure (10.03N, 85.18W) Guanacaste, Stream 519. Rio Naranjito (9.52N, 84.03W) San Jose, Stream 520. Rio Naranjo (9.37N, 84.12W) , Stream | 521. Rio Naranjo (9.85N, 83.82W) Cartago, Stream 522. Rio Naranjo (9.98N, 84.78W) Puntarenas, Stream 523. Rio Naranjo (10.68N, 85.12W) Guanacaste, Stream 524. Rio Naranjo (10.75N, 85.38W) Guanacaste, Stream 525. Rio Naranjo (10.8N, 85.68W) Guanacaste, Stream 526. Rio Nari (9.82N, 83.4W) Limon, Stream 527. Rio Navarro (9.82N, 83.87W) Cartago, Stream 528. Rio Negrita (10.43N, 84.33W) Alajuela, Stream 529. Rio Negritos (10.47N, 84.27W) Alajuela, Stream 530. Rio Negro (8.88N, 82.92W) Puntarenas, Stream 531. Rio Negro (9.63N, 84.4W) Puntarenas, Stream 532. Rio Negro (9.7N, 85.12W) Puntarenas, Stream 533. Rio Negro (9.85N, 84.22W) San Jose, Stream 534. Rio Negro (10.45N, 84.82W) Guanacaste, Stream 535. Rio Negro (10.53N, 84.33W) Alajuela, Stream 536. Rio Negro (10.68N, 83.67W) Limon, Stream 537. Rio Negro (8.88N, 82.85W) Puntarenas, Populated Place 538. Rio Negro (9.63N, 84.38W) Puntarenas, Populated Place 539. Rio Negro (9.68N, 85.15W) Puntarenas, Populated Place 540. Rio Negro (11.88N, 84.92W) Alajuela, Populated Place 541. Rio Negro (9.53N, 84.53W) , Stream 542. Rio Nimboyores (10.3N, 85.7W) Guanacaste, Stream 543. Rio Nosara (9.97N, 85.68W) Guanacaste, Stream 544. Rio Nuevo (8.55N, 83.33W) Puntarenas, Stream 545. Rio Nuevo (8.63N, 83.02W) Puntarenas, Stream 546. Rio Nuevo (10.08N, 84W) San Jose, Stream 547. Rio Nuevo (8.52N, 83.33W) Puntarenas, Populated Place 548. Rio Nuevo (9.42N, 83.8W) San Jose, Populated Place 549. Rio Ocloro (9.92N, 84.07W) San Jose, Stream 550. Rio Ojoche (9.95N, 85.28W) Guanacaste, Stream 551. Rio Ojoche (10.62N, 84.25W) Alajuela, Stream 552. Rio Ora (9.87N, 85.45W) Guanacaste, Stream 553. Rio Organo (10.55N, 85.4W) Guanacaste, Stream 554. Rio Organos (9.82N, 84.9W) Puntarenas, Stream 555. Rio Oro (9.95N, 84.22W) San Jose, Stream 556. Rio Oro (9.93N, 84.2W) Alajuela, Populated Place 557. Rio Oro (9.98N, 85.32W) Guanacaste, Populated Place 558. Rio Ostional (9.98N, 85.72W) Guanacaste, Stream 559. Rio Pacaca (9.93N, 84.25W) San Jose, Stream 560. Rio Pacayas (10.07N, 84.15W) Heredia, Stream |