View real-time river gauge data for specific locations along the Upper Mississippi River. Monitor water levels, flow rates, and historical trends. Receive alerts for significant changes. Share data with other users or save for later reference.
by Timothy Johnson★ 5.03 ratingsNavigationFreeData updated 2026-09-06
Learn and test knowledge of navigation rules with interactive quizzes and detailed explanations. Filter questions by category and difficulty. Track progress with performance analytics and proficiency reports.
Find routes and compare trip times and costs for Metro Manila. Get step-by-step using crowd-sourced data. Choose from jeepneys, buses, trains, and ferries. Track real-time updates and follow @sakayph for alerts.
Find fishing spots and learn about fish species in specific locations. Share and discover locations with other users. Search for spots by water type and view fish species information. Pin locations on a map and share them with the community.
Monitor seismic activity in real time with precise data. Adjust sensitivity to detect vibrations or filter noise. Receive alerts for significant seismic events. View historical data and track patterns over time. Share recordings and data with others.
Calculate land area using coordinates or map points. Measure distances between locations. Set property prices based on area. Export measurements and save data for reference.
Access real-time data with high-resolution radar and satellite imagery. Track severe trends and view current conditions updated frequently. Save favorite locations and receive location-based forecasts.
Navigate with real-time warnings and emergency SOS features. Access 35,000+ marinas and anchorages with detailed information. View 350,000 community photos and reviews. Book in 700+ marinas across Europe. Chat with users and marinas in-.
Search for diesel prices at truck stops across the country. View current rates and compare prices. Save money on fuel purchases. Track price trends and receive updates. Share price data with other drivers.
Navigate UK canals with detailed maps showing locks, bridges, aqueducts, tunnels, and facilities. View mile markers, boatyards, CRT notices, and local amenities like pubs and convenience stores.
Provide scientifically calculated forecasts for specific fish species and locations. Track solunar cycles to determine optimal times. Share real-time weather data and fish behavior patterns to improve catch rates.
Access detailed nautical charts with C-MAP® for route planning and GPS navigation. View weather data and marine traffic. Set personal waypoints and record tracks. Explore thousands of pre-loaded points of interest.
Book shared rides by selecting pickup and drop-off points or tapping on a map. Choose departure time and view available options. Receive in- notifications before your ride starts. Track real-time ride progress and estimated arrival time.
View global weather data from GRIB files including wind, precipitation, pressure, temperature, waves, and more. Overlay weather information on custom map locations. Watch animated weather maps. Analyze trends and save data for later reference.
Find locations using GPS. Get turn-by-turn voice with real-time traffic updates. Track routes and receive driving directions. View for any destination. Enable safer and faster travel with tracking and features.
Search properties for sale in Wisconsin and the Upper Peninsula of Michigan. View detailed listings with photos, descriptions, price, taxes, estimated mortgage, and maps. Filter by location or enter specific addresses.
Access real-time traffic data for roads, including closures, crashes, and roadwork. Receive audio alerts for traffic events while driving. View roadside camera images and plow tracker updates.