How it works

About us

Use cases

Bonnie Park Dam Removal
Dora Kelly Nature Park
Jackson View Landing

Telling stories together.

Changes in our environment are difficult to see and understand because they happen gradually, but long term monitoring projects are expensive and complex. Chronolog solves this problem by connecting communities with land stewards to create crowd-sourced time lapses of important natural areas.


Chronolog’s mission is twofold: First, to engage people with nature in an interactive new way. Second, to keep a record of phenological change for scientific use. By making environmental conservation a collaborative activity, people become interested in participating and compelled by the findings.

Blue Water River Walk
Fuller Farm Preserve

Want to get involved?

We're always looking for interested folks to get involved in maintaining and growing our organization.

Selected Press

Park Visitors Chronolog Ecosystems To Help Monitor Change

Park Visitors Chronolog Ecosystems To Help Monitor Change

Each year three million people visit Indiana Dunes State and National Parks. At the same time, park staff are actively managing and restoring hundreds of acres of wetlands, oak savannas, and o... Continue Reading

Citizen Science Time Lapses at Shenandoah National Park

Citizen Science Time Lapses at Shenandoah National Park

Landscapes change over time, but it can be hard to track what changes are actually occurring, and the data collection can be a massive undertaking. Recent developments in technology have made ... Continue Reading

Citizen Science Project At Keālia Pond National Wildlife Refuge

Citizen Science Project At Keālia Pond National Wildlife Refuge

“Keālia Pond National Wildlife Refuge is excited to provide this opportunity for visitors to get involved and document their wildlife refuge,” said Courtney Brown, Keālia Pond NWR visitor serv... Continue Reading

The Changing Environment and Chronolog

The Changing Environment and Chronolog

If you haven’t been to the museum’s wetlands in a while (let’s face, not many people have since this past March) and you miss it, here’s a few shots of what it looks like now. Back in March th... Continue Reading

Recording Change One Photo at a Time

Recording Change One Photo at a Time

Environmental changes can move at a snail’s pace, making them costly to record and hard for the average person — and even scientists — to visualize. Now, Scenic Hudson has introduced an inexpe... Continue Reading

Big Thicket National Preserve: Chronolog Citizen Science

Big Thicket National Preserve: Chronolog Citizen Science

This project positively impacts the longleaf restoration project that the preserve has been a part of for over 10 years. This project will help BTNP monitor both the natural reforestation of t... Continue Reading

Chronolog is a fun and easy way to assist refuge staff in caring for this special place.

Courtney Brown

Keālia Pond NWR Visitor Service Manager

Keālia Pond National Wildlife Refuge

Photo added to Keālia Coastal Boardwalk, Hawaii, US on May 21, 2021

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Chronolog is a monitoring tool for parks, nature centers, wildlife organizations, schools, and museums worldwide. With over 100,000 contributors across 300 organizations, Chronolog is on a mission to engage communities with nature while recording important natural changes.

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